Brain
Neuroscience, brain anatomy, neural circuits, learning, memory, and how the nervous system processes signals and adapts structure.
9 lessons in this category
May 2026
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11 May 6 min
How brain aging works — and what you can actually slow
Brain aging is synaptic loss, inflammation, and declining neuroplasticity. Three activities slow these processes by triggering specific cellular responses — not because they're virtuous, but because they're mechanistically sound.
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10 May 7 min
Why Kindness Looks Different to Children and Adults
A child finds their mother's kindness annoying. Decades later, they call it her defining gift. The shift isn't personal growth — it's cognitive development.
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10 May 8 min
Why Paper Calendars Create Stronger Memories Than Digital Ones
Writing by hand engages motor cortex and spatial memory in ways typing doesn't. The neuroscience explains why different inputs create different memory traces — not better or worse, just different pathways.
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09 May 6 min
Walking Slower? Your Ears, Not Your Knees, Might Be the Problem
Most people blame slower walking on weak muscles or worn joints. The real culprit is often the inner ear's balance system — three fluid-filled loops that tell your brain which way is up.
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07 May 6 min
The Neural Wiring Diagram for a Love Song
Singing mice evolved expanded motor cortex projections to coordinate vocal muscles. What that expansion reveals about how brains wire themselves for complex sequential movements.
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06 May 7 min
Your Brain Is Rebuilding Itself Right Now
A single dose of psilocybin causes measurable brain structure changes within a month. What 'anatomical change' means, why speed matters, and what it reveals about how all brains work.
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01 May 6 min
How One Experience Can Rewire Your Brain
You can remember someone's name after hearing it once. Neuroscience's most famous rule couldn't explain how — until now.
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01 May 6 min
Three ADHDs
Brain scans reveal three distinct ADHD subtypes with different connectivity patterns. This teaches how medical categories refine through measurement — and what subtyping costs and buys.